ट्रिविया

Alfred Hitchcock once considered making a film of this famous murder story by Francis Iles, perhaps with Alec Guinness as Dr. Bickleigh. Hitchcock had already made a film ("Suspicion") based on the other famous Francis Iles novel, "Before The Fact".

Hywel Bennett and Michael Aldridge appeared in Tinker Tailor Soldier Spy (1979).